Burning knucler>battlin' feggots

https://i.imgur.com/v9RQfHJ.png decklist. Some great support was added and major synergy is present. Burning knuckler shadow: During your Main Phase: You can activate this effect; detach 1 Xyz Material from a "Battlin' Boxer" Xyz Monster you control, and if you do, Special Summon this card from your hand. You can only use the effect of "Battlin' Boxer Shadow" once per turn.Pretty nice eh?Burning knuckler nova caesar:2 Level 4 monstersOnce per turn: You can attach 1 "Battlin' Boxer" monster from your hand or Graveyard to this card as Xyz Material.This card gains 100 ATK for each Xyz Material attached to it.When this card you control is destroyed by your opponent (either by battle or by card effect) and sent to your Graveyard: You can target any number of Level 4 or lower "Battlin' Boxer" monsters in your Graveyard, up to the number of Xyz Materials this card had on the field; Special Summon those targets.